CN215343938U - Accumulator and uninterrupted power supply - Google Patents
Accumulator and uninterrupted power supply Download PDFInfo
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- CN215343938U CN215343938U CN202023352415.5U CN202023352415U CN215343938U CN 215343938 U CN215343938 U CN 215343938U CN 202023352415 U CN202023352415 U CN 202023352415U CN 215343938 U CN215343938 U CN 215343938U
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- 230000005856 abnormality Effects 0.000 abstract description 4
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- 101710119937 Probable E3 ubiquitin-protein ligase MID2 Proteins 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Abstract
Storage battery and uninterruptible power supply, and relates to the technical field of uninterruptible power supplies. The storage battery comprises a positive output line, a negative output line and a neutral line, wherein the positive output line is connected with a first switch in series to conduct or cut off the positive output line, and the storage battery further comprises a second switch which is connected with the negative output line in series to conduct or cut off the negative output line or connected with the neutral line in series to conduct or cut off the neutral line. And a second switch is added to control the on-off of the cathode output line or the neutral line, so that the cathode output line or the neutral line is cut off when necessary, a loop cannot be formed between the cathode output line and the neutral line after the system controls the storage battery to be closed, the voltage balance among the batteries in the storage battery is ensured, and the service life is prolonged. The storage battery can be completely turned off when abnormality occurs, the safety of the storage battery is protected, and the use safety is improved.
Description
Technical Field
The technical scheme relates to the technical field of uninterruptible power supplies.
Background
The UPS, i.e., an uninterruptible power supply, is a system device that connects a storage battery to a host and converts direct current power to commercial power through a module circuit such as a host inverter. When the mains supply input is normal, the UPS supplies the mains supply to a load for use after stabilizing the voltage of the mains supply, and simultaneously charges a built-in battery; when the commercial power is interrupted, the UPS immediately switches and converts the direct current electric energy of the battery into the commercial power through the inverter to supply power to the load continuously, so that the load keeps normal work, and the software and hardware of the load are protected from being damaged.
A battery is an important component of a UPS, and the battery is usually formed by connecting a plurality of batteries in series. Usually, a switch is arranged on an anode output line of the storage battery, so that the storage battery is switched on and off during normal work, and the storage battery is protected when the storage battery is switched off during abnormal work.
Some batteries today have a positive and a negative electrode, and are also equipped with a neutral line interface for drawing a neutral line, where the neutral line interface connects the contacts between two of the batteries in the battery, allowing the battery to provide two sets of voltage outputs. For such a storage battery with a neutral line, after the switch on the positive output line is turned off, a loop may be formed between the neutral line and the negative electrode, so that the battery between the neutral line and the negative electrode continues to be charged or discharged, which causes voltage imbalance between the batteries inside the storage battery, and affects the battery life. And the storage battery cannot be completely shut down even when the abnormality occurs, so that the protection of the storage battery may fail.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a storage battery and an uninterruptible power supply, which can protect the storage battery.
In order to solve the technical problems, the utility model provides the following technical scheme.
1. The storage battery comprises a positive output line, a negative output line and a neutral line, wherein the positive output line is connected with a first switch in series to conduct or cut off the positive output line, and the storage battery further comprises a second switch which is connected with the negative output line in series to conduct or cut off the negative output line or connected with the neutral line in series to conduct or cut off the neutral line.
And a second switch is added to control the on-off of the cathode output line or the neutral line, so that the cathode output line or the neutral line is cut off when necessary, a loop cannot be formed between the cathode output line and the neutral line after the system controls the storage battery to be closed, the voltage balance among the batteries in the storage battery is ensured, and the service life is prolonged. The storage battery can be completely turned off when abnormality occurs, the safety of the storage battery is protected, and the use safety is improved.
2. In the battery according to claim 1, the second switch is turned on or off in synchronization with the first switch.
If the first switch and the second switch are not synchronous in switching action, even if the time difference is small, the voltage between the batteries in the storage battery is slightly different, and after the storage battery is circularly used for many times, the voltage difference between the batteries is gradually increased, so that the voltage imbalance among the batteries in the storage battery is caused. The second switch and the first switch are synchronously switched on or off, so that the problem can be solved, and the voltage balance among the batteries in the storage battery is ensured.
3. According to the storage battery in the technical scheme 1, the first switch and the second switch are both relays or contactors.
4. An uninterruptible power supply comprising the storage battery according to any one of claims 1 to 3.
Drawings
FIG. 1 is a schematic structural view of a storage battery of the utility model;
reference numerals:
a positive output line 1; a midline 2; and a negative output line 3.
Detailed Description
The present invention will be described in detail with reference to specific examples.
As shown in fig. 1, the battery comprises a positive output line 1, a negative output line 3 and a neutral line 2, wherein the positive output line 1 is connected in series with a first switch K1 for switching on or off the positive output line 1, and the battery further comprises a second switch K2, and the second switch K2 is connected in series with the negative output line 3 for switching on or off the negative output line 3 or connected in series with the neutral line 2 for switching on or off the neutral line 2. Wherein the first switch K1 and the second switch K2 are both relays or contactors, and are kept synchronously on or off.
A second switch K2 is added to control the on-off of the cathode output line 3 or the neutral line 2, so that the cathode output line 3 or the neutral line 2 is cut off when necessary, a loop cannot be formed between the cathode output line 3 and the neutral line 2 after the system controls the storage battery to be closed, the voltage balance among the batteries in the storage battery is ensured, and the service life is prolonged. The storage battery can be completely turned off when abnormality occurs, the safety of the storage battery is protected, and the use safety is improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (3)
1. The storage battery comprises a positive output line, a negative output line and a neutral line, wherein the positive output line is connected with a first switch in series to conduct or cut off the positive output line, and the storage battery is characterized by further comprising a second switch, the second switch is connected with the negative output line in series to conduct or cut off the negative output line or connected with the neutral line in series to conduct or cut off the neutral line, and the second switch and the first switch are synchronously switched on or off.
2. The battery of claim 1, wherein the first switch and the second switch are both relays or contactors.
3. Uninterruptible power supply, characterized in that it comprises a battery according to any of claims 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023352415.5U CN215343938U (en) | 2020-12-31 | 2020-12-31 | Accumulator and uninterrupted power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023352415.5U CN215343938U (en) | 2020-12-31 | 2020-12-31 | Accumulator and uninterrupted power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215343938U true CN215343938U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023352415.5U Active CN215343938U (en) | 2020-12-31 | 2020-12-31 | Accumulator and uninterrupted power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215343938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737047A (en) * | 2020-12-31 | 2021-04-30 | 航天柏克(广东)科技有限公司 | Accumulator and uninterrupted power supply |
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2020
- 2020-12-31 CN CN202023352415.5U patent/CN215343938U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737047A (en) * | 2020-12-31 | 2021-04-30 | 航天柏克(广东)科技有限公司 | Accumulator and uninterrupted power supply |
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